ボリュームグループ内に空きがある状態で、論理ボリュームおよびファイルシステム（ext4）を拡張します。
検証した環境
$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
$ uname -r
5.15.56-v8+変更前の状態
$ df -Th /data
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/rootvg-lvdata ext4 20G 15G 4.2G 78% /data論理ボリュームの拡張とファイルシステム拡張
$ sudo vgdisplay rootvg
--- Volume group ---
VG Name rootvg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 17
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 11
Open LV 10
Max PV 0
Cur PV 1
Act PV 1
VG Size <223.07 GiB
PE Size 4.00 MiB
Total PE 57105
Alloc PE / Size 26880 / 105.00 GiB
Free PE / Size 30225 / <118.07 GiB
VG UUID 83GKze-HuNR-fAaJ-cxM0-7ujj-dlr5-YNmzMo
$ sudo lvextend -l +12800 /dev/mapper/rootvg-lvdata ･･･ 12800ｘ4MB＝51200MB
Size of logical volume rootvg/lvdata changed from 20.00 GiB (5120 extents) to 70.00 GiB (17920 extents).
Logical volume rootvg/lvdata successfully resized.
$ sudo vgdisplay rootvg
--- Volume group ---
VG Name rootvg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 18
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 11
Open LV 10
Max PV 0
Cur PV 1
Act PV 1
VG Size <223.07 GiB
PE Size 4.00 MiB
Total PE 57105
Alloc PE / Size 39680 / 155.00 GiB
Free PE / Size 17425 / <68.07 GiB
VG UUID 83GKze-HuNR-fAaJ-cxM0-7ujj-dlr5-YNmrMo
$ sudo resize2fs /dev/mapper/rootvg-lvdata
resize2fs 1.46.2 (28-Feb-2021)
Filesystem at /dev/mapper/rootvg-lvdata is mounted on /data; on-line resizing required
old_desc_blocks = 3, new_desc_blocks = 9
The filesystem on /dev/mapper/rootvg-lvdata is now 18350080 (4k) blocks long.
変更後の確認
$ df -Th /data
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/rootvg-lvdata ext4 69G 15G 52G 22% /data